Quantum was a large manufacturer of storage devices that was implementing an ERP system called WARP to replace its nine legacy systems. It faced challenges from a recent acquisition that increased complexity. The document discussed a phased versus big-bang approach to ERP implementation. A phased approach implements modules gradually over time by location, while a big-bang cuts over everything at once. Factors like organizational size and the implementation scope impact the choice. The document sought to determine which approach Quantum should take and discuss benefits.